"I am glad to be thought of as good company, dinner aside."

Lancelot doesn't the answer, in truth, since it does tell him something. It tells him that Faolan did consider the wider ramifications, that he sought to stop something bad happening. That he has a good heart, in that sense. Has done something he did not particularly want to for the greater good.

He likes the answer, in that sense, even if Faolan thought he might not.

"Although it is good to know that I can always bribe you with food if I need to."